1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
never [62]
2 years ago
9

A sample of n = 9 participants is obtained from a population with participants are as follows : 23 , 33 26 , 28 , 30 , 26 , 27 ,

25 , 25 and a treatment is administered to the individuals in the sample . After treatment , the scores for the nine a Are the data sufficient to conclude that the treatment has a significant effect ? Use a two - tailed test with a SO^ prime =Y . Are the data sufficient to conclude that the treatment significantly decreased scores ? Use a one - tailed test with a = .
Mathematics
1 answer:
slavikrds [6]2 years ago
3 0

Use 2 tailed test with SO

You might be interested in
PLZ HELP ASAP WILL GIVE BRAINLIAST (GEOMETRY)
Sergio039 [100]
No they aren’t congruent, both of their measurements are completely different
6 0
3 years ago
A math test is worth 100 points and has 38 problems. each problem is worth either 5 points or 2 points. how many problems of eac
blondinia [14]
Hey there,
There are 2 ways
1st way:
Since there are 8 5 point problems, 38 - 8 = 30, will give you the 2 point problems.

2nd way: 
8 x 5 = 40
100 - 40 = 60
60 / 2 = 30
Thus there are 30, 2 point problems.

Hope this helps :))

~Top
4 0
3 years ago
Read 2 more answers
Please anwser im having the hardest time on this picture
Free_Kalibri [48]
What you do first is add the books 42 + 85 + 69 which equals 196. Then divide 196 by 7 and you get 28 :)
3 0
3 years ago
Read 2 more answers
A car rental agency has 150 cars. The owner finds that at a price of $48 per day, he can rent all the cars. For each $2 increase
hram777 [196]
Given that for each <span>$2 increase in price, the demand is less and 4 fewer cars are rented.

Let x be the number of $2 increases in price, then the revenue from renting cars is given by
(48 + 2x) \times (150 - 4x)=7,200+108x-8x^2.

Also, given that f</span><span>or each car that is rented, there are routine maintenance costs of $5 per day, then the total cost of renting cars is given by
5(150-4x)=750-20x

Profit is given by revenue - cost.
Thus, the profit from renting cars is given by
</span><span>(7,200+108x-8x^2)-(750-20x)=6,450+128x-8x^2

For maximum profit, the differentiation of the profit function equals zero.
i.e.
</span><span>\frac{d}{dx} (6,450+128x-8x^2)=0 \\  \\ 128-16x=0 \\  \\ x= \frac{128}{16} =8

The price of renting a car is given by 48 + 2x = 48 + 2(8) = 48 + 16 = 64.

Therefore, the </span><span>rental charge will maximize profit is $64.</span>
3 0
3 years ago
What is the value of n?
qaws [65]

Answer:

your answer will be<u> A.85°</u>

Step-by-step explanation:

hope it helps you

have a great day!!!

4 0
2 years ago
Other questions:
  • Find the are of a sector angle P (in degrees) of a circle with radius R...
    11·1 answer
  • The product of the slopes of two non-vertical perpendicular lines is always -1. It is NOT possible for two perpendicular lines t
    12·2 answers
  • When 6 is multiplied by a number the result is 30
    5·2 answers
  • $185 DVD player ;6% markup
    8·1 answer
  • What is the answer to question 12?
    11·1 answer
  • If 3/x=5/y, what is the value of y/x?
    11·2 answers
  • Camila tried level 1 again to embrace her score on her second try she earned 655 points camila wants to find the number of large
    15·1 answer
  • ?????????HELP PLEASE?????
    6·1 answer
  • Two angles in a triangle measure 102 and 54. What measure of the third angle?
    5·1 answer
  • Find the alternate interior angles in the figure shown given that​ m||n. Use pencil and paper. Describe a situation where you wo
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!